Electrochemical strategy for grown ZnO nanoparticles deposited onto HY zeolite with enhanced photodecolorization of methylene blue: Effect of the formation of SiOZn bonds

Sapawe, Norzahir; Jalil, Aishah Abd.; Triwahyono, Sugeng; Sah, R. N.; Jusoh, Norela; Hairom, Nur Hanis Hayati; Efendi, Jon

doi:10.1016/j.apcata.2013.02.025

Cited by 90 publications

(54 citation statements)

References 72 publications

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“…The nanosized metal oxides as well as the synergistic interaction between the metal and the support were found to play important roles in the enhancement of the reaction [4]. Further study on the property of that zinc metal oxide showed that it was nanoparticle in size, which showed promising photoactivity in the removal of methyl orange from aqueous solution [15].…”

Section: -2506mentioning

confidence: 99%

“…Though, most of the unspent dyes generate undesirable effluents and usually discharged to the environment with or without further treatment [1,[5][6][7]. These effluents run into water bodies and can cause severe problems if not being treated properly as they are toxic, mutagenic and carcinogenic to human life as well as prohibit the photosynthesis of aquatic life even as small quantities as 1 ppm [3,4]. To overcome this problems, several methods have been reported for the removal of such dyes including chemical and biological oxidation, adsorption, electrochemical oxidation, coagulation and flocculation, ion exchange, and membrane separation [5,6,[8][9][10].…”

Section: -2506mentioning

confidence: 99%

“…In Malaysia, about 97% of the dye effluents are mainly come from three industrial classes, which are food, chemical and textiles industry [3]. Among this, about 22% of the total volume of these industrial wastewater is from the textile industry, commonly use basic dyes, such as crystal violet, rhodamine B, methyl violet, methylene blue and etc., to add colour for their final products of wool, silk, cotton, linen and modified acrylic fibres [3][4]. Though, most of the unspent dyes generate undesirable effluents and usually discharged to the environment with or without further treatment [1,[5][6][7].…”

Section: -2506mentioning

confidence: 99%

“…Zeolite is considered to be an important support owing to their high surface area, high thermal stability, eco-friendly nature, and also have reported to provide specific photophysical properties such as control charge transfer and electron transfer processes [3,4]. A review of recent research revealed that some of the succesful examples of metal oxides supported zeolite are TiO 2 -HZSM-5, Co-ZSM-5, CuO-X zeolite and Feexchange zeolite [3,4,[11][12][13]. Most of the popular one are TiO 2 and ZnO but the report on the ZrO 2 supported zeolite photocatalyst is quite rare.…”

Section: -2506mentioning

confidence: 99%

“…as photocatalysts has became attractive and accorded great importance due to its potential to destroy and transform a wide range of harmful dyes at ambient temperature to the simplest form of nontoxic products, CO 2 and water [2][3][4]. Zeolite is considered to be an important support owing to their high surface area, high thermal stability, eco-friendly nature, and also have reported to provide specific photophysical properties such as control charge transfer and electron transfer processes [3,4]. A review of recent research revealed that some of the succesful examples of metal oxides supported zeolite are TiO 2 -HZSM-5, Co-ZSM-5, CuO-X zeolite and Feexchange zeolite [3,4,[11][12][13].…”

Section: -2506mentioning

confidence: 99%

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PERFORMANCE OF EGZrO2-EGFe2O3/HY AS PHOTOCATALYST AND ITS EFFICACY IN DECOLORIZATION OF DYE-CONTAMINANTS

Sapawe¹

2016

MJAS

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The performance of electrogenerated metals supported on HY zeolite (EGZrO 2 -EGFe 2 O 3 /HY) was studied under sunlight irradiation for the decolorization of methylene blue (MB) and Congo red (CR) in aqueous solutions. The prepared photocatalysts were examined using X-ray diffraction (XRD), transmission electron microscopy (TEM), and Brunnauer-Emmett-Teller surface area analysis (BET). An amount of 0.375 g L −1 EGZrO 2 -EGFe 2 O 3 /HY was found to be the optimum dosage for 10 mg L −1 dyes, which gave almost complete photodecolorization of both MB and CR dye after 2 hours of contact time at pH 9 and pH 7, respectively. In addition, a control experiment was also conducted under similar conditions to confirm the efficacy of the prepared photocatalyst. The simple preparation of the photocatalyst and low amount of metal loading required, with simultaneously existence of synergistic effect from both metal oxides exhibits the great potential of the system that could be applied in textile or other industries wastewater treatment. Keywords: photocatalyst, dyes, decolorization, sunlight AbstrakKeupayaan logam elektrogenerasi disokong pada zeolit HY (EGZrO 2 -EGFe 2 O 3 /HY) telah dijalankan di bawah sinar matahari untuk penyahwarnaan metilena biru (MB) dan Congo merah (CR) dalam larutan akues. Fotomangkin telah dikaji menggunakan pembelauan sinar X-ray (XRD), mikroskopi elektron transmisi (TEM), dan analisis luas permukaan Brunnauer-Emmett-Teller (BET). Sejumlah 0.375 g L −1 EGZrO 2 -EGFe 2 O 3 /HY telah didapati sebagai dos optimum untuk 10 mg L −1 larutan pewarna, yang memberikan penyahwarnaan hampir lengkap bagi kedua-dua pewarna MB dan CR selepas 2 jam tindak balas pada pH 9 dan pH 7. Di samping itu, satu eksperimen kawalan juga telah dijalankan pada keadaan yang sama untuk mengesahkan keberkesanan fotomangkin yang disediakan. Penyediaan yang mudah untuk fotomangkin dan jumlah muatan logam sedikit yang diperlukan, pada masa yang sama dengan kewujudan kesan sinergi dari kedua-dua oksida logam mempamerkan potensi besar untuk sistem ini digunakan dalam industri tekstil atau industri rawatan air sisa yang lain.

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Section: -2506mentioning

confidence: 99%

Section: -2506mentioning

confidence: 99%

Section: -2506mentioning

confidence: 99%

Section: -2506mentioning

confidence: 99%

Section: -2506mentioning

confidence: 99%

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PERFORMANCE OF EGZrO2-EGFe2O3/HY AS PHOTOCATALYST AND ITS EFFICACY IN DECOLORIZATION OF DYE-CONTAMINANTS

Sapawe¹

2016

MJAS

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PAHs Released From Coal Tars and Potential Removal Using Nanocatalysts

Mukwevho

Fosso‐Kankeu

Waanders

2019

Nano and Bio‐Based Technologies for Wastewater Treatment

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Insight into the influence of defect sites in mixed phase of mesoporous titania nanoparticles toward photocatalytic degradation of 2‐chlorophenol: Effect of light source

Marfur

Jaafar

2021

J Chinese Chemical Soc

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The impact of different light irradiation was studied on photocatalytic degradation of 2‐chlorophenol (2‐CP) using mesoporous titania nanoparticles (MTNs) prepared by microwave‐assisted methods. The photoactivity of MTNs was also compared with pretreated commercial TiO2 and Degussa P25 (P25). The reactions were conducted for 2.5 hr under UV‐A, UV‐C, sunlight, and visible light using a batch reactor. The catalysts were characterized by X‐ray powder diffractometer, UV–Vis diffuse reflectance spectroscopy, photoluminescence, Brunauer–Emmett–Teller method, field‐emission scanning electron microscopy, transmission electron microscopy, and X‐ray photoelectron spectroscopy. The characterization results confirmed that MTN consisted a composition of 21% rutile phase and 79% anatase phase with Ti3+ site defects (TSDs) and oxygen vacancies (OVs) in their structures because of their anionic surfactant nature, microwave heating, and high calcination temperature during the catalyst preparation. Besides, the photoactivity of MTN upon degradation of 2‐CP under sunlight has exhibited the best performance with 100% degradation followed by UV‐A, visible light, and UV‐C with degradation of 96, 52, and 39%, respectively. MTNs showed a remarkable performance due to their mixed‐phase crystalline structures as well as the formation of TSDs and OVs, which improved the charge migration, lowered the band gap energy, and reduced the rate of electron–hole recombination, thus succeeded to be activated under a wide range of light responses.

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Electrochemical strategy for grown ZnO nanoparticles deposited onto HY zeolite with enhanced photodecolorization of methylene blue: Effect of the formation of SiOZn bonds

Cited by 90 publications

References 72 publications

PERFORMANCE OF EGZrO2-EGFe2O3/HY AS PHOTOCATALYST AND ITS EFFICACY IN DECOLORIZATION OF DYE-CONTAMINANTS

PERFORMANCE OF EGZrO2-EGFe2O3/HY AS PHOTOCATALYST AND ITS EFFICACY IN DECOLORIZATION OF DYE-CONTAMINANTS

PAHs Released From Coal Tars and Potential Removal Using Nanocatalysts

Insight into the influence of defect sites in mixed phase of mesoporous titania nanoparticles toward photocatalytic degradation of 2‐chlorophenol: Effect of light source

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